Illuminating fixture



July 30, 1929. F. BARTELs ILLUMINA'I'ING FIXTURE Filed Ma 31, 1923 Patented July so, 1929.

UNITED STATES FRANK BARTELS, OF JERSEY CETY, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS,

1,722,966 PATENT OFFICE.

TO THE FRINK CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

ILLUMINATING FIXTURE.

Application filed May 31,

This invention pertains to illuminating fixtures, and more particularly to a fixture for use in the separate rooms of steamers such as at the end of a berth, for affording a source of light to the occupant thereof, although it will be understood that my invention may be used in relations and positions other than in rooms of steamships.

The object is to provide a simple structure the parts of which are held fixedly in operative relation to each other so as to preclude rattling and noise under the vibration or movement of the steamer, and which parts are capable of ready separation and assemblage for the purpose of inspection and replacement of the lamp and the related parts, the whole fixture being easily and quickly installed and the several locking parts of said fixture being concealed and inaccessible so that unwarranted interference and tampering with the fixture is precluded to a practical extent.

With these ends in View, my invention embodies a casing or housing attachable readily to a wall surface and affording means for supporting a lamp and a switch therefor, a

globe for covering a light opening in said housing, and a locking member co-operable with the housing and the globe for fixedly attaching said globe to the housing in a manner to preclude rattling and adapted to permit the globe to be dismounted so as to obtain access to the lamp and the switch.

Other functions and advantages of the invention will appear from the following description taken in connection with the drawings, wherein- Figure 1 is a vertical section through my figure on the line 11 of Figure 2. the lamp and switch pull chain being indicated by dotted lines.

' Figure 2 is an elevation partly in section on the line 2-2 of Figure 1.

. Figure 3 is a horizontal section on the line 33 of Figure 2.

Figure 4 is a detail view of the globe and the locking member assembledready for introduction into the housing or casing.

The housing or casing A is a single piece of metal, either cast or stamped, open at the rear and provided on the front with a hood B extending forwardly at the upper part of the housing so as to protrude appreciably, the said hood sloping toward the bottom and rear as shown in Figure 1. The sloping part 1923. Serial No. 642,407.

of the hood is provided with a light opening a, and from the boundary wall of this openlng protrudes a plurality of locking studs 6, see Figures land 2. WVithin the housing, at the upper part thereof, is a Wall 0 provided with a socket holding member 0, to which is attached a socket C for an incandescent lamp C and for a switch the pull chain C of which is shown by dotted lines in Figure 1. It is apparent that the socket, the lamp and the switch may be of any preferred or approved construction suitable for use in my fixture.

The rear of the housing A is bounded by a fiat surface or edge adapted to rest into contact firmly with a wall surface, but intermediate the top and bottom of this rear edge or face, the housing is shown as having recesses (Z in which are fitted the end portions of a bridge bar D. This bridge bar is thus set flush with the rear edge of the housing, to which said bar is fixedly attached by screws cl, said bridge bar being thus adapted with the housing to have contact firmly with the Wall surface and to be secured thereto by screws 6Z2, thus affording simple and secure means for the ready attachment of the housing in a fixed position on a Wall.

The light opening is covered by a globe E, composed of a suitable transparent or translucent material, ground glass being preferred. This globe is approximately are shaped in cross section, and it is provided at its open side with a boundary bead or rim 0. Said globe is demountable with respect to the light opening a of the hood B, and is held fixedly therein, by a locking member F, the same being shown as a ring or annulus of a size to fit snugly within said light opening a. The locking ring is formed to afford a seat for the beaded edge of the globe and for the reception of a retainer shown as a spring ring Gr, whereby the locking ring F and globe E are adapted for assemblage into fixed relation to each other so as to constitute a unit for attachment to the light housing and to be dismounted as a unit from said light housing.

In a practical form, the locking ring F is formed at one edge with a flange to receive the beaded edge e of the globe and to act as a seat therefor, and, furthermore, this locking ring F is offset or beaded at g on a line rearwardly of the seat flange f. This annular head or offset 9 of the locking ring serves a two-fold purpose; first, it affords an external -inst the fixture housing.

abutment adapted for contact with the hood B so as to limit the insertion of the ring F into the light housing and to afford a firm bearing for the ring against said light housing, and, second, it provides an annular channel or groove 9 on the interior or the ring, which channel or groove is adapted to receive the spring ring or. The locking ring F is provided with bayonet slots h, one at each side and opposite to each other, see Figures 2 and 3, said slots being positioned to receive the studs 6 in a manner for the ring and globe to be inserted by a direct movement and then partly rotated for efiecting an interlocking connection between the housing and the ring.

The globe and the ring are assembled by slipping the ring over the globe for the b ad "cot said globe to occupy the flange 7" of the ring, and the split retainer or ring G is forced or wedged into the channel 9 provided by the annular head 9 of the ring, whereby the pansive force of the split retainer holds itselt in the channel 9 and the globe E is thus locked to the ring F so as to be held against vibration and rattling therein. The electric equipment is or may be attached to the fixture member A prior to fastening said fixture member to the wall, such attachment being readily made by means of the bridge and the screws. The electrical equipment having been lnSLtlllQLl, and the ring F assembled with the globe E and retainer are now ready for .ition a unit with reference to the housing. his is done by moving the ring and the globe bodily in a sidewise lateral) direction, for the ring i to enter the light opening a and for the studs Z) to enter the outer endportions of the bayonet slots h, whereuponthe globe and the ring are given a rotative movement with respect to the housing, the effect of which is that the studs Z) enter the closed ends or the slots h in order to lock the ring F to the housing. The ring is locked to the housing, and it holds the globe in a fixed position with respect to said housing,v but the globe and the ring may be dis mounted readily as unit by turning the ring in an opposite direction and then moving it outwardly, thus permitting easy access-to the electrical equipment for inspection or repairs.

It is to be observed that the means for retaining the globe in fixed relation to the lock ing ring are housed or encased within said locking ring so that unwarranted tampering with the globe retaining means is precluded without dismounting the locking ring and the globe from the fixture. Furthermore, the locking ring is held fixedly in position by means which are also concealed within and by Intact, the two retaining means, one for the globe and the other for the locking ring, are both concealed and normally inaccessible, as a result of which mischievously inclined persons or other individuals cannot tamper with the fixture nor remove parts thereof, thus overcoming a serious objection to some prior types of fixtures the lamp and other parts of which are sometimes carried oil unwarrantably, but to those familiar with the fixture the globe and the ring are easily demountable and replaceable for access to the lamp and equipment for inspection and repairs.

Havingthus fully described the invention what I claim as new and desire to secure by Letters Patent is:

1. re a light fixture, a wall plate provided with a lig it opening, a ring fitted in said opening and finding an annular bearing or seat therein, said ring being provided with an annular sad and with a flange adjacent said bead, said annular bead contacting with said light housing and affording a stop to the insertion or said ring into the light opening, a globe seated within the flange of said ring, a spring member co-operable with the ring and mot-ion relatively: to the ring, and separate means for locking said ring detachably to the wall plate, said ring with the attached globe being attachable as a unit to the wall plate and d'en'rountable as a unit from said wall plate.

2. In a light fixture, a wall plate the front portion or which is inclined in two directions, one of which inclined portions is provided with a light opening, a ring occupying. said light opening and having an annular bearing in contact with the edge of said opening, said ring being provided with an annular bead contacting with said inclined front wall and functioning as a stop to arrest the inward movement of the ring with respect to the wall plate, a globe carried by said ring, and means for detachably locking said ring to said wall plate, said ring and the globe being attachable and demountable as a unit with respect to the wall plate.

3. In a light fixture, a wall plate provided with a light opening, a ring occupying said light opening and finding an annular bearing therein, said ring being provided with an external stop bead the inner surface of which constitutes an annular groove which opens on the inside'ofc' said ring, a globe fitted in the ring, a spring retainer occupying said annular groove and contacting with said globe for locking the globe to the ring and retain iir said lobe in a non-rattlin relation to b a D 1 i I c u u the rang, and means ror lockingsaid ring to the wall plate, said ring and the attached Y globe being attachable toand detachable from "ly of said bead, a globe seated in the ring, a spring retainer held in the ring and contacting with saidglobe for taking up lost motion of the globe and for retaining the latter in a non-rattling relation to the ring, and studs extending from the wall plate and engaging the slots of the ring for detachably locking said ring to the wall plate, said ring and the attached globe being attachable as a unit to the wall plate and detachable therefrom.

5. In a light fixture, a ring provided at one edge with a flange and'provided intermediate its edges with an annular protruding bead the inner surface of which opens within the ring and constitutes an annular groove, a globe having one edge seated within said flange, a spring retainer occupying said annular groove and contacting with said edge of the globe for retaining the globe in non-rattling relation to the ring, a wall plate provided with a light opening into which the ring is fitted to find an annular bearing therein whereby the protruding annular bead contacts with the wall plate to arrest the inward movement of said ring, and means for locking the ring to said wall plate.

6. In a light fixture, a wall plate open at the rear and constituting a housing for a lamp, said wall plate having a front wall composed of reversely inclined portions the upper one of which portions is imperforate and the lower portion having a light opening, a ring seated in said opening of the lower portion, a globe carried by said ring and attachable and demountable with said ring with respect to the Wall plate, and means for locking the ring to the wall plate.

In testimony whereof I have hereto signed my name this 28 day of May, 1928.

FRANK BARTELS. 

